kepka/Telegram/SourceFiles/base/qthelp_regex.h

98 lines
3.6 KiB
C++

//
// This file is part of Kepka,
// an unofficial desktop version of Telegram messaging app,
// see https://github.com/procxx/kepka
//
// Kepka is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// It is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// In addition, as a special exception, the copyright holders give permission
// to link the code of portions of this program with the OpenSSL library.
//
// Full license: https://github.com/procxx/kepka/blob/master/LICENSE
// Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
// Copyright (c) 2017- Kepka Contributors, https://github.com/procxx
//
#pragma once
#include <QRegularExpression>
#include "base/flags.h"
namespace qthelp {
class RegularExpressionMatch {
public:
RegularExpressionMatch(const QRegularExpressionMatch &other) = delete;
RegularExpressionMatch(const RegularExpressionMatch &other) = delete;
RegularExpressionMatch(QRegularExpressionMatch &&match)
: data_(std::move(match)) {}
RegularExpressionMatch(RegularExpressionMatch &&other)
: data_(std::move(other.data_)) {}
RegularExpressionMatch &operator=(const QRegularExpressionMatch &match) = delete;
RegularExpressionMatch &operator=(const RegularExpressionMatch &other) = delete;
RegularExpressionMatch &operator=(QRegularExpressionMatch &&match) {
data_ = std::move(match);
return *this;
}
RegularExpressionMatch &operator=(RegularExpressionMatch &&other) {
data_ = std::move(other.data_);
return *this;
}
QRegularExpressionMatch *operator->() {
return &data_;
}
const QRegularExpressionMatch *operator->() const {
return &data_;
}
explicit operator bool() const {
return data_.hasMatch();
}
private:
QRegularExpressionMatch data_;
};
enum class RegExOption {
None = QRegularExpression::NoPatternOption,
CaseInsensitive = QRegularExpression::CaseInsensitiveOption,
DotMatchesEverything = QRegularExpression::DotMatchesEverythingOption,
Multiline = QRegularExpression::MultilineOption,
ExtendedSyntax = QRegularExpression::ExtendedPatternSyntaxOption,
InvertedGreediness = QRegularExpression::InvertedGreedinessOption,
DontCapture = QRegularExpression::DontCaptureOption,
UseUnicodeProperties = QRegularExpression::UseUnicodePropertiesOption,
#ifndef OS_MAC_OLD
OptimizeOnFirstUsage = QRegularExpression::OptimizeOnFirstUsageOption,
DontAutomaticallyOptimize = QRegularExpression::DontAutomaticallyOptimizeOption,
#endif // OS_MAC_OLD
};
using RegExOptions = base::flags<RegExOption>;
inline constexpr auto is_flag_type(RegExOption) {
return true;
};
inline RegularExpressionMatch regex_match(const QString &string, const QString &subject, RegExOptions options = 0) {
auto qtOptions = QRegularExpression::PatternOptions(static_cast<int>(options));
return RegularExpressionMatch(QRegularExpression(string, qtOptions).match(subject));
}
inline RegularExpressionMatch regex_match(const QString &string, const QStringRef &subjectRef,
RegExOptions options = 0) {
auto qtOptions = QRegularExpression::PatternOptions(static_cast<int>(options));
#ifndef OS_MAC_OLD
return RegularExpressionMatch(QRegularExpression(string, qtOptions).match(subjectRef));
#else // OS_MAC_OLD
return RegularExpressionMatch(QRegularExpression(string, qtOptions).match(subjectRef.toString()));
#endif // OS_MAC_OLD
}
} // namespace qthelp